rambda/src/flip.js

Lightweight faster alternative to Ramda

function flipExport(fn){
  return (...input) => {
    if (input.length === 1){
      return holder => fn(holder, input[ 0 ])
    } else if (input.length === 2){
      return fn(input[ 1 ], input[ 0 ])
    }

    return undefined
  }
}

export function flip(fn){
  return flipExport(fn)
}